package test.thread.parallelization;

import org.testng.ITestNGListener;
import org.testng.TestNG;
import org.testng.annotations.BeforeClass;
import org.testng.annotations.Test;
import org.testng.xml.XmlSuite;

import test.thread.parallelization.sample.TestClassAFiveMethodsWithDataProviderOnSomeMethodsAndNoDepsSample;
import test.thread.parallelization.sample.TestClassBSixMethodsWithDataProviderOnSomeMethodsAndNoDepsSample;
import test.thread.parallelization.sample.TestClassCFiveMethodsWithDataProviderOnSomeMethodsAndNoDepsSample;
import test.thread.parallelization.sample.TestClassDThreeMethodsWithDataProviderOnSomeMethodsAndNoDepsSample;
import test.thread.parallelization.sample.TestClassEFourMethodsWithDataProviderOnSomeMethodsAndNoDepsSample;
import test.thread.parallelization.sample.TestClassFSixMethodsWithDataProviderOnSomeMethodsAndNoDepsSample;

import java.util.Arrays;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import static org.testng.Assert.assertEquals;

import static test.thread.parallelization.TestNgRunStateTracker.getAllEventLogsForSuite;
import static test.thread.parallelization.TestNgRunStateTracker.getAllSuiteLevelEventLogs;
import static test.thread.parallelization.TestNgRunStateTracker.getAllSuiteListenerStartEventLogs;
import static test.thread.parallelization.TestNgRunStateTracker.getAllTestLevelEventLogs;
import static test.thread.parallelization.TestNgRunStateTracker.getAllTestMethodLevelEventLogs;
import static test.thread.parallelization.TestNgRunStateTracker.getSuiteAndTestLevelEventLogsForSuite;
import static test.thread.parallelization.TestNgRunStateTracker.getSuiteLevelEventLogsForSuite;
import static test.thread.parallelization.TestNgRunStateTracker.getSuiteListenerFinishEventLog;
import static test.thread.parallelization.TestNgRunStateTracker.getSuiteListenerStartEventLog;
import static test.thread.parallelization.TestNgRunStateTracker.getTestLevelEventLogsForSuite;
import static test.thread.parallelization.TestNgRunStateTracker.getTestListenerFinishEventLog;
import static test.thread.parallelization.TestNgRunStateTracker.getTestListenerStartEventLog;
import static test.thread.parallelization.TestNgRunStateTracker.getTestMethodLevelEventLogsForSuite;
import static test.thread.parallelization.TestNgRunStateTracker.getTestMethodLevelEventLogsForTest;
import static test.thread.parallelization.TestNgRunStateTracker.reset;

/**
 * This class covers PTP_TC_3, Scenario 2 in the Parallelization Test Plan.
 *
 * Test Case Summary: Parallel by methods mode with sequential test suites using a non-parallel data provider but no
 *                    dependencies and no factories.
 *
 * Scenario Description: Two suites with 1 and 2 tests respectively. One test for a suite shall consist of a single
 *                       test class while the rest shall consist of more than one test class. Each test class has some
 *                       methods with use a data provider and some which do not. Two data providers are used: one which
 *                       provides two sets of data, one which provide three sets of data.
 *
 * 1) For both suites, the thread count and parallel mode are specified at the suite level
 * 2) The thread count is less than the number of test methods for all tests in both suites, so methods will have to
 *    wait the active thread count to drop below the maximum thread count before they can begin execution. The
 *    expectation is that a thread for a method does not terminate until the method has been invoked for all sets of
 *    data if it uses a data provider.
 * 3) There are NO configuration methods
 * 4) All test methods pass
 * 5) NO ordering is specified
 * 6) group-by-instances is NOT set
 * 7) There are no method exclusions
 */
public class ParallelByMethodsTestCase3Scenario2 extends BaseParallelizationTest {

    private static final String SUITE_A = "TestSuiteA";
    private static final String SUITE_B = "TestSuiteB";

    private static final String SUITE_A_TEST_A = "TestSuiteA-TwoTestClassTest";

    private static final String SUITE_B_TEST_A = "TestSuiteB-SingleTestClassTest";
    private static final String SUITE_B_TEST_B = "TestSuiteB-ThreeTestClassTest";

    private Map<String, List<TestNgRunStateTracker.EventLog>> suiteEventLogsMap = new HashMap<>();
    private Map<String, Integer> expectedInvocationCounts = new HashMap<>();

    private List<TestNgRunStateTracker.EventLog> suiteLevelEventLogs;
    private List<TestNgRunStateTracker.EventLog> testLevelEventLogs;
    private List<TestNgRunStateTracker.EventLog> testMethodLevelEventLogs;

    private List<TestNgRunStateTracker.EventLog> suiteOneSuiteAndTestLevelEventLogs;
    private List<TestNgRunStateTracker.EventLog> suiteOneSuiteLevelEventLogs;
    private List<TestNgRunStateTracker.EventLog> suiteOneTestLevelEventLogs;
    private List<TestNgRunStateTracker.EventLog> suiteOneTestMethodLevelEventLogs;

    private List<TestNgRunStateTracker.EventLog> suiteTwoSuiteAndTestLevelEventLogs;
    private List<TestNgRunStateTracker.EventLog> suiteTwoSuiteLevelEventLogs;
    private List<TestNgRunStateTracker.EventLog> suiteTwoTestLevelEventLogs;
    private List<TestNgRunStateTracker.EventLog> suiteTwoTestMethodLevelEventLogs;

    private List<TestNgRunStateTracker.EventLog> suiteOneTestOneTestMethodLevelEventLogs;

    private List<TestNgRunStateTracker.EventLog> suiteTwoTestOneTestMethodLevelEventLogs;
    private List<TestNgRunStateTracker.EventLog> suiteTwoTestTwoTestMethodLevelEventLogs;

    private TestNgRunStateTracker.EventLog suiteOneSuiteListenerOnStartEventLog;
    private TestNgRunStateTracker.EventLog suiteOneSuiteListenerOnFinishEventLog;

    private TestNgRunStateTracker.EventLog suiteTwoSuiteListenerOnStartEventLog;
    private TestNgRunStateTracker.EventLog suiteTwoSuiteListenerOnFinishEventLog;

    private TestNgRunStateTracker.EventLog suiteOneTestOneListenerOnStartEventLog;
    private TestNgRunStateTracker.EventLog suiteOneTestOneListenerOnFinishEventLog;

    private TestNgRunStateTracker.EventLog suiteTwoTestOneListenerOnStartEventLog;
    private TestNgRunStateTracker.EventLog suiteTwoTestOneListenerOnFinishEventLog;
    private TestNgRunStateTracker.EventLog suiteTwoTestTwoListenerOnStartEventLog;
    private TestNgRunStateTracker.EventLog suiteTwoTestTwoListenerOnFinishEventLog;

    @BeforeClass
    public void setUp() {
        reset();

        XmlSuite suiteOne = createXmlSuite(SUITE_A);
        XmlSuite suiteTwo = createXmlSuite(SUITE_B);

        createXmlTest(suiteOne, SUITE_A_TEST_A,
                TestClassAFiveMethodsWithDataProviderOnSomeMethodsAndNoDepsSample.class,
                TestClassBSixMethodsWithDataProviderOnSomeMethodsAndNoDepsSample.class);

        createXmlTest(suiteTwo, SUITE_B_TEST_A,
                TestClassCFiveMethodsWithDataProviderOnSomeMethodsAndNoDepsSample.class);
        createXmlTest(suiteTwo, SUITE_B_TEST_B,
                TestClassDThreeMethodsWithDataProviderOnSomeMethodsAndNoDepsSample.class,
                TestClassEFourMethodsWithDataProviderOnSomeMethodsAndNoDepsSample.class,
                TestClassFSixMethodsWithDataProviderOnSomeMethodsAndNoDepsSample.class);

        suiteOne.setParallel(XmlSuite.ParallelMode.METHODS);

        suiteOne.setThreadCount(3);
        suiteTwo.setParallel(XmlSuite.ParallelMode.METHODS);
        suiteTwo.setThreadCount(4);


        addParams(suiteOne, SUITE_A, SUITE_A_TEST_A, "1", "paramOne,paramTwo,paramThree");

        addParams(suiteTwo, SUITE_B, SUITE_B_TEST_A, "1", "paramOne,paramTwo");
        addParams(suiteTwo, SUITE_B, SUITE_B_TEST_B, "1", "paramOne,paramTwo");

        TestNG tng = create(suiteOne, suiteTwo);
        tng.addListener((ITestNGListener) new TestNgRunStateListener());

        tng.run();

        expectedInvocationCounts.put(
                TestClassAFiveMethodsWithDataProviderOnSomeMethodsAndNoDepsSample.class.getCanonicalName() +
                        ".testMethodA", 3);
        expectedInvocationCounts.put(
                TestClassAFiveMethodsWithDataProviderOnSomeMethodsAndNoDepsSample.class.getCanonicalName() +
                        ".testMethodB", 1);
        expectedInvocationCounts.put(
                TestClassAFiveMethodsWithDataProviderOnSomeMethodsAndNoDepsSample.class.getCanonicalName() +
                        ".testMethodC", 3);
        expectedInvocationCounts.put(
                TestClassAFiveMethodsWithDataProviderOnSomeMethodsAndNoDepsSample.class.getCanonicalName() +
                        ".testMethodD", 1);
        expectedInvocationCounts.put(
                TestClassAFiveMethodsWithDataProviderOnSomeMethodsAndNoDepsSample.class.getCanonicalName() +
                        ".testMethodE", 3);

        expectedInvocationCounts.put(
                TestClassBSixMethodsWithDataProviderOnSomeMethodsAndNoDepsSample.class.getCanonicalName() +
                        ".testMethodA", 1);
        expectedInvocationCounts.put(
                TestClassBSixMethodsWithDataProviderOnSomeMethodsAndNoDepsSample.class.getCanonicalName() +
                        ".testMethodB", 3);
        expectedInvocationCounts.put(
                TestClassBSixMethodsWithDataProviderOnSomeMethodsAndNoDepsSample.class.getCanonicalName() +
                        ".testMethodC", 1);
        expectedInvocationCounts.put(
                TestClassBSixMethodsWithDataProviderOnSomeMethodsAndNoDepsSample.class.getCanonicalName() +
                        ".testMethodD", 3);
        expectedInvocationCounts.put(
                TestClassBSixMethodsWithDataProviderOnSomeMethodsAndNoDepsSample.class.getCanonicalName() +
                        ".testMethodE", 1);
        expectedInvocationCounts.put(
                TestClassBSixMethodsWithDataProviderOnSomeMethodsAndNoDepsSample.class.getCanonicalName() +
                        ".testMethodF", 3);


        expectedInvocationCounts.put(
                TestClassCFiveMethodsWithDataProviderOnSomeMethodsAndNoDepsSample.class.getCanonicalName() +
                        ".testMethodA", 2);
        expectedInvocationCounts.put(
                TestClassCFiveMethodsWithDataProviderOnSomeMethodsAndNoDepsSample.class.getCanonicalName() +
                        ".testMethodB", 1);
        expectedInvocationCounts.put(
                TestClassCFiveMethodsWithDataProviderOnSomeMethodsAndNoDepsSample.class.getCanonicalName() +
                        ".testMethodC", 2);
        expectedInvocationCounts.put(
                TestClassCFiveMethodsWithDataProviderOnSomeMethodsAndNoDepsSample.class.getCanonicalName() +
                        ".testMethodD", 1);
        expectedInvocationCounts.put(
                TestClassCFiveMethodsWithDataProviderOnSomeMethodsAndNoDepsSample.class.getCanonicalName() +
                        ".testMethodE", 2);


        expectedInvocationCounts.put(
                TestClassDThreeMethodsWithDataProviderOnSomeMethodsAndNoDepsSample.class.getCanonicalName() +
                        ".testMethodA", 1);
        expectedInvocationCounts.put(
                TestClassDThreeMethodsWithDataProviderOnSomeMethodsAndNoDepsSample.class.getCanonicalName() +
                        ".testMethodB", 2);
        expectedInvocationCounts.put(
                TestClassDThreeMethodsWithDataProviderOnSomeMethodsAndNoDepsSample.class.getCanonicalName() +
                        ".testMethodC", 1);


        expectedInvocationCounts.put(
                TestClassEFourMethodsWithDataProviderOnSomeMethodsAndNoDepsSample.class.getCanonicalName() +
                        ".testMethodA", 2);
        expectedInvocationCounts.put(
                TestClassEFourMethodsWithDataProviderOnSomeMethodsAndNoDepsSample.class.getCanonicalName() +
                        ".testMethodB", 2);
        expectedInvocationCounts.put(
                TestClassEFourMethodsWithDataProviderOnSomeMethodsAndNoDepsSample.class.getCanonicalName() +
                        ".testMethodC", 1);
        expectedInvocationCounts.put(
                TestClassEFourMethodsWithDataProviderOnSomeMethodsAndNoDepsSample.class.getCanonicalName() +
                        ".testMethodD", 1);


        expectedInvocationCounts.put(
                TestClassFSixMethodsWithDataProviderOnSomeMethodsAndNoDepsSample.class.getCanonicalName() +
                        ".testMethodA", 1);
        expectedInvocationCounts.put(
                TestClassFSixMethodsWithDataProviderOnSomeMethodsAndNoDepsSample.class.getCanonicalName() +
                        ".testMethodB", 2);
        expectedInvocationCounts.put(
                TestClassFSixMethodsWithDataProviderOnSomeMethodsAndNoDepsSample.class.getCanonicalName() +
                        ".testMethodC", 1);
        expectedInvocationCounts.put(
                TestClassFSixMethodsWithDataProviderOnSomeMethodsAndNoDepsSample.class.getCanonicalName() +
                        ".testMethodD", 2);
        expectedInvocationCounts.put(
                TestClassFSixMethodsWithDataProviderOnSomeMethodsAndNoDepsSample.class.getCanonicalName() +
                        ".testMethodE", 1);
        expectedInvocationCounts.put(
                TestClassFSixMethodsWithDataProviderOnSomeMethodsAndNoDepsSample.class.getCanonicalName() +
                        ".testMethodF", 2);


        suiteLevelEventLogs = getAllSuiteLevelEventLogs();
        testLevelEventLogs = getAllTestLevelEventLogs();
        testMethodLevelEventLogs = getAllTestMethodLevelEventLogs();

        suiteOneSuiteAndTestLevelEventLogs = getSuiteAndTestLevelEventLogsForSuite(SUITE_A);
        suiteOneSuiteLevelEventLogs = getSuiteLevelEventLogsForSuite(SUITE_A);
        suiteOneTestLevelEventLogs = getTestLevelEventLogsForSuite(SUITE_A);

        suiteTwoSuiteAndTestLevelEventLogs = getSuiteAndTestLevelEventLogsForSuite(SUITE_B);
        suiteTwoSuiteLevelEventLogs = getSuiteLevelEventLogsForSuite(SUITE_B);
        suiteTwoTestLevelEventLogs = getTestLevelEventLogsForSuite(SUITE_B);

        suiteEventLogsMap.put(SUITE_A, getAllEventLogsForSuite(SUITE_A));
        suiteEventLogsMap.put(SUITE_B, getAllEventLogsForSuite(SUITE_B));

        suiteOneTestMethodLevelEventLogs = getTestMethodLevelEventLogsForSuite(SUITE_A);
        suiteTwoTestMethodLevelEventLogs = getTestMethodLevelEventLogsForSuite(SUITE_B);

        suiteOneTestOneTestMethodLevelEventLogs = getTestMethodLevelEventLogsForTest(SUITE_A, SUITE_A_TEST_A);

        suiteTwoTestOneTestMethodLevelEventLogs = getTestMethodLevelEventLogsForTest(SUITE_B, SUITE_B_TEST_A);
        suiteTwoTestTwoTestMethodLevelEventLogs = getTestMethodLevelEventLogsForTest(SUITE_B, SUITE_B_TEST_B);

        suiteOneSuiteListenerOnStartEventLog = getSuiteListenerStartEventLog(SUITE_A);
        suiteOneSuiteListenerOnFinishEventLog = getSuiteListenerFinishEventLog(SUITE_A);

        suiteTwoSuiteListenerOnStartEventLog = getSuiteListenerStartEventLog(SUITE_B);
        suiteTwoSuiteListenerOnFinishEventLog = getSuiteListenerFinishEventLog(SUITE_B);

        suiteOneTestOneListenerOnStartEventLog = getTestListenerStartEventLog(SUITE_A, SUITE_A_TEST_A);
        suiteOneTestOneListenerOnFinishEventLog = getTestListenerFinishEventLog(SUITE_A, SUITE_A_TEST_A);

        suiteTwoTestOneListenerOnStartEventLog = getTestListenerStartEventLog(SUITE_B, SUITE_B_TEST_A);
        suiteTwoTestOneListenerOnFinishEventLog = getTestListenerFinishEventLog(SUITE_B, SUITE_B_TEST_A);

        suiteTwoTestTwoListenerOnStartEventLog = getTestListenerStartEventLog(SUITE_B, SUITE_B_TEST_B);
        suiteTwoTestTwoListenerOnFinishEventLog = getTestListenerFinishEventLog(SUITE_B, SUITE_B_TEST_B);

    }

    //Verifies that the expected number of suite, test and test method level events were logged for each of the three
    //suites.
    @Test
    public void sanityCheck() {
        assertEquals(suiteLevelEventLogs.size(), 4, "There should be 4 suite level events logged for " + SUITE_A +
                ", " + SUITE_B + ": " + suiteLevelEventLogs);
        assertEquals(testLevelEventLogs.size(), 6, "There should be 6 test level events logged for " + SUITE_A +
                ", " + SUITE_B + ": " + testLevelEventLogs);

        assertEquals(testMethodLevelEventLogs.size(), 150, "There should 150 test method level events logged for " +
                SUITE_A + ", " + SUITE_B + ": " + testMethodLevelEventLogs);

        assertEquals(suiteOneSuiteLevelEventLogs.size(), 2, "There should be 2 suite level events logged for " +
                SUITE_A + ": " + suiteOneSuiteLevelEventLogs);
        assertEquals(suiteOneTestLevelEventLogs.size(), 2, "There should be 2 test level events logged for " + SUITE_A +
                ": " + suiteOneTestLevelEventLogs);
        assertEquals(suiteOneTestMethodLevelEventLogs.size(), 69, "There should be 69 test method level events " +
                "logged for " + SUITE_A + ": " + suiteOneTestMethodLevelEventLogs);

        assertEquals(suiteTwoSuiteLevelEventLogs.size(), 2, "There should be 2 suite level events logged for " +
                SUITE_B + ": " + suiteTwoSuiteLevelEventLogs);
        assertEquals(suiteTwoTestLevelEventLogs.size(), 4, "There should be 4 test level events logged for " + SUITE_B +
                ": " + suiteTwoTestLevelEventLogs);
        assertEquals(suiteTwoTestMethodLevelEventLogs.size(), 81, "There should be 54 test method level events " +
                "logged for " + SUITE_B + ": " + suiteTwoTestMethodLevelEventLogs);
    }

    //Verify that all the events in the second suite and third suites run have timestamps later than the suite
    //listener's onFinish event for the first suite run.
    //Verify that all the events in the third suite run have timestamps later than the suite listener's onFinish
    //event for the second suite run.
    //Verify that all suite level events run in the same thread
    @Test
    public void verifySuitesRunSequentiallyInSameThread() {
        verifySequentialSuites(suiteLevelEventLogs, suiteEventLogsMap);
    }

    //For all suites, verify that the test level events run sequentially because the parallel mode is by methods only.
    @Test
    public void verifySuiteAndTestLevelEventsRunInSequentialOrderForIndividualSuites() {

        verifySequentialTests(suiteOneSuiteAndTestLevelEventLogs, suiteOneTestLevelEventLogs,
                suiteOneSuiteListenerOnStartEventLog, suiteOneSuiteListenerOnFinishEventLog);

        verifySequentialTests(suiteTwoSuiteAndTestLevelEventLogs, suiteTwoTestLevelEventLogs,
                suiteTwoSuiteListenerOnStartEventLog, suiteTwoSuiteListenerOnFinishEventLog);
    }

    //Verify that there is only a single test class instance associated with each of the test methods from the sample
    //classes for every test in all the suites.
    //Verify that the same test class instance is associated with each of the test methods from the sample test class
    @Test
    public void verifyOnlyOneInstanceOfTestClassForAllTestMethodsForAllSuites() {

        verifyNumberOfInstancesOfTestClassesForMethods(
                SUITE_A,
                SUITE_A_TEST_A,
                Arrays.asList(
                        TestClassAFiveMethodsWithDataProviderOnSomeMethodsAndNoDepsSample.class,
                        TestClassBSixMethodsWithDataProviderOnSomeMethodsAndNoDepsSample.class
                ),
                1);

        verifySameInstancesOfTestClassesAssociatedWithMethods(
                SUITE_A,
                SUITE_A_TEST_A,
                Arrays.asList(
                        TestClassAFiveMethodsWithDataProviderOnSomeMethodsAndNoDepsSample.class,
                        TestClassBSixMethodsWithDataProviderOnSomeMethodsAndNoDepsSample.class
                )
        );

        verifyNumberOfInstancesOfTestClassForMethods(
                SUITE_B,
                SUITE_B_TEST_A,
                TestClassCFiveMethodsWithDataProviderOnSomeMethodsAndNoDepsSample.class,
                1);

        verifySameInstancesOfTestClassAssociatedWithMethods(
                SUITE_B,
                SUITE_B_TEST_A,
                TestClassCFiveMethodsWithDataProviderOnSomeMethodsAndNoDepsSample.class
        );

        verifyNumberOfInstancesOfTestClassesForMethods(
                SUITE_B,
                SUITE_B_TEST_B,
                Arrays.asList(
                        TestClassDThreeMethodsWithDataProviderOnSomeMethodsAndNoDepsSample.class,
                        TestClassEFourMethodsWithDataProviderOnSomeMethodsAndNoDepsSample.class,
                        TestClassFSixMethodsWithDataProviderOnSomeMethodsAndNoDepsSample.class
                ),
                1
        );

        verifySameInstancesOfTestClassesAssociatedWithMethods(
                SUITE_B,
                SUITE_B_TEST_B,
                Arrays.asList(
                        TestClassDThreeMethodsWithDataProviderOnSomeMethodsAndNoDepsSample.class,
                        TestClassEFourMethodsWithDataProviderOnSomeMethodsAndNoDepsSample.class,
                        TestClassFSixMethodsWithDataProviderOnSomeMethodsAndNoDepsSample.class
                )
        );
    }

    //Verify that the test method listener's onTestStart method runs after the test listener's onStart method for
    //all the test methods in all tests and suites.
    @Test
    public void verifyTestLevelMethodLevelEventLogsOccurBetweenAfterTestListenerStartAndFinishEventLogs() {
        verifyEventsOccurBetween(suiteOneTestOneListenerOnStartEventLog, suiteOneTestOneTestMethodLevelEventLogs,
                suiteOneTestOneListenerOnFinishEventLog,  "All of the test method level event logs for " +
                        SUITE_A_TEST_A + " should have timestamps between the test listener's onStart and onFinish " +
                        "event logs for " + SUITE_A_TEST_A + ". Test listener onStart event log: " +
                        suiteOneTestOneListenerOnStartEventLog + ". Test listener onFinish event log: " +
                        suiteOneTestOneListenerOnFinishEventLog + ". Test method level event logs: " +
                        suiteOneTestOneTestMethodLevelEventLogs);

        verifyEventsOccurBetween(suiteTwoTestOneListenerOnStartEventLog, suiteTwoTestOneTestMethodLevelEventLogs,
                suiteTwoTestOneListenerOnFinishEventLog,  "All of the test method level event logs for " +
                        SUITE_B_TEST_A + " should have timestamps between the test listener's onStart and onFinish " +
                        "event logs for " + SUITE_B_TEST_A + ". Test listener onStart event log: " +
                        suiteTwoTestOneListenerOnStartEventLog + ". Test listener onFinish event log: " +
                        suiteTwoTestOneListenerOnFinishEventLog + ". Test method level event logs: " +
                        suiteTwoTestOneTestMethodLevelEventLogs);

        verifyEventsOccurBetween(suiteTwoTestTwoListenerOnStartEventLog, suiteTwoTestTwoTestMethodLevelEventLogs,
                suiteTwoTestTwoListenerOnFinishEventLog,  "All of the test method level event logs for " +
                        SUITE_B_TEST_B + " should have timestamps between the test listener's onStart and onFinish " +
                        "event logs for " + SUITE_B_TEST_B + ". Test listener onStart event log: " +
                        suiteTwoTestTwoListenerOnStartEventLog + ". Test listener onFinish event log: " +
                        suiteTwoTestTwoListenerOnFinishEventLog + ". Test method level event logs: " +
                        suiteTwoTestTwoTestMethodLevelEventLogs);

    }

    //Verifies that the test methods execute in different threads in parallel fashion.
    @Test
    public void verifyThatTestMethodsRunInParallelThreads() {
        verifyParallelTestMethodsWithNonParallelDataProvider(
                getTestMethodLevelEventLogsForTest(SUITE_A, SUITE_A_TEST_A), SUITE_A_TEST_A, expectedInvocationCounts,
                11, 3
        );

        verifyParallelTestMethodsWithNonParallelDataProvider(
                getTestMethodLevelEventLogsForTest(SUITE_B, SUITE_B_TEST_A), SUITE_B_TEST_A, expectedInvocationCounts,
                5, 4
        );

        verifyParallelTestMethodsWithNonParallelDataProvider(
                getTestMethodLevelEventLogsForTest(SUITE_B, SUITE_B_TEST_B), SUITE_B_TEST_B, expectedInvocationCounts,
                13,
                4
        );
    }

    //Verifies that the method level events all run in different threads from the test and suite level events.
    //Verifies that the test method listener and execution events for a given test method all run in the same thread.
    @Test
    public void verifyThatMethodLevelEventsRunInDifferentThreadsFromSuiteAndTestLevelEvents() {

        verifyEventThreadsSpawnedAfter(getAllSuiteListenerStartEventLogs().get(0).getThreadId(), testMethodLevelEventLogs,
                "All the thread IDs for the test method level events should be greater than the thread ID for the " +
                        "suite and test level events. The expectation is that since the suite and test level events " +
                        "are running sequentially, and all the test methods are running in parallel, new threads "  +
                        "will be spawned after the thread executing the suite and test level events when new methods " +
                        "begin executing. Suite and test level events thread ID: " +
                        getAllSuiteListenerStartEventLogs().get(0).getThreadId() + ". Test method level event logs: " +
                        testMethodLevelEventLogs);


        verifyEventsForTestMethodsRunInTheSameThread(
                TestClassAFiveMethodsWithDataProviderOnSomeMethodsAndNoDepsSample.class, SUITE_A,
                SUITE_A_TEST_A
        );

        verifyEventsForTestMethodsRunInTheSameThread(
                TestClassBSixMethodsWithDataProviderOnSomeMethodsAndNoDepsSample.class, SUITE_A,
                SUITE_A_TEST_A
        );


        verifyEventsForTestMethodsRunInTheSameThread(
                TestClassCFiveMethodsWithDataProviderOnSomeMethodsAndNoDepsSample.class, SUITE_B,
                SUITE_B_TEST_A
        );

        verifyEventsForTestMethodsRunInTheSameThread(
                TestClassDThreeMethodsWithDataProviderOnSomeMethodsAndNoDepsSample.class, SUITE_B,
                SUITE_B_TEST_B
        );

        verifyEventsForTestMethodsRunInTheSameThread(
                TestClassEFourMethodsWithDataProviderOnSomeMethodsAndNoDepsSample.class, SUITE_B,
                SUITE_B_TEST_B
        );

        verifyEventsForTestMethodsRunInTheSameThread(
                TestClassFSixMethodsWithDataProviderOnSomeMethodsAndNoDepsSample.class, SUITE_B,
                SUITE_B_TEST_B
        );
    }
}

